Fraud-preventing device for coin-contolled apparatus.



S. G. BACK & B. L.v DOLLOFF. FRAUD PREVENTING DEVICE'FOR com CONTROLLED APPARATUS.

APPLICATION HLED SEPT. 22. I917.

Patented Au 20, 1918.

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FRAUD PREVENTING DEVICE FOR COIN CONTROLLED APPARATUS.

APPLICATION FILED SEPT. 22, 1917.

1,276,001. Patented Aug. 20, 1918.

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SEID G. BACK Ali?!) BERT I1. IDOLLOFF, OF PORTLAND, OREGON.

FRAUD-PREVENTING DEVICE FOR GOIILWCONTBOLILED APPARATUS.

Specification of Letters Patent.

latented Aug. 20,1918.

Application filed $eptembcr 22, 1917. Serial No. 192,764.

To all whom it may concern:

Be it known that we, SE11) G. BACK and Bear L. DoLLorr, citizens of the United States, residing at Portland, in the county of Multnomah and State of Oregon, have invented new and useful Improvements in Fraud-Preventing Devices for Coin-Controlled Apparatus, of which the following is a specification.

This invention relates to a fraud preventing device for coin controlled apparatus, and one of the objects is to provide a device which may be connected with the coin receptacle of a telephone, or may be connected with a vending machine for the purpose of detectingblanks or slugs which may be inserted, and which will also serve to detect light weight coins. I

Another objectis to provide a construction suitable for use in connection with any coin operated mechanism, and which may be incorporated in the machine proper at the time of the manufacture thereofi,

A further object is to provide a construction which shall be electrically controlled under certain conditions, and which shall be under electro-magnetic control in the event that slugs of iron or the like are employed.

With the foregoing and other objects in view, the invention consists in the novel construction hereinafter described, and including a pivoted weighing chute in which a coin or slug is discharged from the receiving device, this chute being'so mounted and so controlled that the slug or light weight coin will be discharged from one end thereof without operating the weighingchute, and will be returned to the individual depositing the article, whereas a genuine coin of proper weight will operate the weighing chute and A balanced weighing chute is designated 10 and is mounted in a fixed position in yoke 12, the latter being pivotally mounted at 14: in a U-shaped frame 15.

Secured to the under side of chute 10 is a cross arm 16 carrying thereon threaded pins 17 and 18 which serve to mount weights 19 and 20 arranged for adjustment by reason of the threaded connection, and secured in position when adjusted by means of set screws 21 and 22. This adjustment makes it possible to set the apparatus for operation by means of coins of different sizes or de nominations.

The opposite end of the weighing chute 10 carries a laterally extending device 2 1 in which is mounted an adjusting screw 25 carrying a contact member 26. A mercury cup 27 is mounted on the base 28 and a second contact member 30 extends into this cup and is mounted on the arm 31 pivoted at 32 in a bracket 33' insulated from the base, the opposite end of the pivoted member serving to carry a discharge chute 35 which is downwardly inclined as shown and is positioned below the discharge end of weighing chute 10. Thedischarge chute is in sulated from pivoted member 31. V

A coin receiving chute is designated and is mounted in a fixed position in a yoke 41 which latter is pivotally mounted at 42 in frame 15. One end of this chute carries a weight 44- serving to normally retain the corresponding end of the chute in a lower position, and the same end of the chute carries a laterally extending lug 46 through which passes a screw 47 contacting with the frame 15 and designed to limit the extent of movement of chute 40. A screw 48 passes through the lower member 16 and contacts with frame 15 for the purpose of limiting the movement of chute 10.

insulating block carried upon the frame 15.

The casing serves to house the apparatus and is provided with a slot 61 through which the coin is deposited, the coin passing thence to chute 40. The casing 60 is also provided with a slot 62 opposite one end of 'illustratedin Fig. 6. v v u 11f a genuine coin depositedias above indichute 10 through which. blanks, slugs, or light weight coins are discharged for return to the individual,depositing ,thelatter. Gen,- uine coins are discharged through the slot 58 in the base and thence passthrough slot 59 0f the casing into the coin receptacleof thetelephone or vending machine as the case ma be.

If a blank 01 slug is deposited and is received within the chute 40 at the end 40 thereof it will cause said chute to move downwardly at that end and will complete a circuit through magnet .65 by reason of the contact through member 51, and if the slug 'or blank be of iron or the like, itw'ill fall nearer to the center of the chuteend than if of non-magnetic ll'lfltllfll, being deflected by the magnetized arm 74: on one of the poles and falling nearer to thecenter as indicated it will fail to o crate chute '10, that isjit will fail to depress theend 10 thereof, and the chute 'bein'g downwardly inclined toward the opposite end, the blank orksl'u'g will be discharged through the slot 62 the casing and will be returned to the individual depositing'tlie article. During th'edischarge of the coin from chute 40contactwas broken through inernber 51 by reason of the: downward movement of the opposite end of chute 40 underitheinfluence of the weight' t l and the circuit through'niagnet65 was therefore broken and the blankor slug was no longer acted upon magnetically. v

A genuine coin of proper weight if dropped into chute40 will cause the latter to tilt downwardlyat the end 40 thereof, the coin falling into chute 10 in a position nearer to the end 10 than that above indicated in onnection with'the movement of a blank of iron or the like. The coinpassing from chute 40 will cause Contact through member 51 to be broken owing to the movement of the chute downwardly and 'rearwa'rdly under the influence of the weight 44, this circuit havin been completed when the coin was first d iopped in chute 40.

The shock incident to the falling of the coin from ch ute 40 into chute 10 Will force downwardly the end 10 of said chute and will complete acircuit through contact '26 and through contact 30 within the mercury cup 27, serving to energize magnet 65 and its pole extension 65 and, therefore will causefsaid chute 10 to move slightly farther and to be held in a lower position long venough to'permit the coin to-pass'out roof .the end 105 and into the discharge chute 35' previously mentioned, passing thence throughthe slot 58jintothe"coin receptacle. "The position of, the coin atithe "end of chute 10, as it is'about to be discharged is cated is notIrOf sufficient weight to operate the device when properlyadjusted, and it not desired that the coin shall pass into the coin receptacle, this coin will pass from the end of chute 10 adjacent to the slot provided for the discharge and return of slugs and blanks, theweights l9, L-Oscrving to return that end'of 'the'chuteto its lower position after the first shock due to thefalling of the coin into the chute, the "force exerted by the coin'in fallinghaving been insufficient to depress the end 10 of the chute to such an extent as to make electric'con'tact through member '26. V

It will therefore be apparent that the weighing "chute 10 is operative for dischargin'g coins into the coin receptacle only when the latter "are of the proper wei ht, and

that it'cannotbe operated'by a blah oi-slug even if of proper weight, in the event that the article is of iron or the likeand there- 'fore subject 'to magnetic influence.

The magnet is only momentarily energized when'the circuit is completed through the uppercontact'o l and cup 52, and the coin immediately falls from chute 40, and

"the period during which the magnet is energized is so short'tha t'the weighin'g'chute will nothave timeto'resp'on'd in the manner specified upon the completion of the circuit through mercur cup 27.

g The circuit'is finally broken through the upward "movement of contact 30 when the coin "forces the pivoted "discharge rchute '35 downwardly. 7

When the c ircuitis closed by'm'a'king contact through member 51 and the mercu'ry cup 52"curr'ent flows from terminal of the batteryhthrough wire 76,.wire77,'lower contact 53' of E the cup *then'ce -to the contact 51 through the chute 40, the frame 15, wire '78to the magnet 65, wire 7 9to terminal of the battery.

The circuit throughthe mercury cupc'27 is. as follows:

\Fromiterminal .75 ofthe battery through wire 7 6, bracket 33,"arm 31,".contact"30,'contact 26, chute 10, :frame 15,wire 178, magnet 65. .wire 7 9 to the battery'terminal 80.

What is claimed is: 1 1. In a device of the class described, a

pivoted weighing chute normally inclined and discharging coins from the-endqnormal'l' v elevated and dischargingrejectedohjects from the opposite endya pivoted 'receivlng device, a magnetyandmeansfor energizing the magnet 'bythe movement of the pivoted receiving device for deflecting a check capable of being magnetized and causing it to drop into the inclined weighing chute at a predetermined point with reference-to its pivotal mounting and without operating said weighing" chute, the check beingdischarged from thechute by gravity. 2.1a adevice of the class described, a

pivotally mounted "and weighted receiving device, a magnet and means for completing a circuit therefor upon the pivotal movement of the receiving device, a pivotally mounted weighing chute operated by an object of a given weight not responsive to the action of a magnet, means for energizing the magnet when the weighing chute is operated, a frame in which said chutes are mounted, said frame forming a part of the electrical connection between the chutes and the mag net, a pivoted discharge chute, and mounting means therefor, said discharge chute being positioned to partly support the object received from the weighing chute, the weighing chute moving under impact of the object and completing a circuit through the mounting means of the discharge chute and through the magnet, for effecting discharge from the weighing chute, the operation of the discharge chute by the object breaking the circuit.

3. In a device of the class described, a pivotally mounted and weighted receiving device, a magnet and means for completing a circuit therefor upon the pivotal movement of the receiving device, the magnet being positioned for influencing the path of movement of a check of iron or the like, a pivotally mounted weighing chute nor mally inclined and operated by an object of a given weight not responsive to the action of a magnet, a pivotally mounted discharge chute positioned to partly sup ort the object when ready for discharge rom the weighing chute, means for energizing the magnet when the weighing chute is operated, said magnet causing the further operation of the weighing chute for delivering the coin to the discharge chute, and means for breaking the circuit of the magnet upon the pivotal movement of the discharge chute under impact of the coin delivered thereto.

In testimony whereof we affix our signatures.

SEID G. BACK. BERT L. DOLLOFF.

(topics of this patent may be obtained for five cents each, by addressing the Commissioner. of latents,

Washington, D. G. 

